/*
 * Copyright 2018 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package androidx.compose.ui.graphics

import androidx.compose.runtime.Immutable

/** Quality levels for image filters. See [Paint.filterQuality]. */
@Immutable
@kotlin.jvm.JvmInline
value class FilterQuality internal constructor(val value: Int) {

    companion object {
        /**
         * Fastest possible filtering, albeit also the lowest quality Typically this implies
         * nearest-neighbour filtering.
         */
        val None = FilterQuality(0)

        /**
         * Better quality than [None], faster than [Medium]. Typically this implies bilinear
         * interpolation.
         */
        val Low = FilterQuality(1)

        /**
         * Better quality than [Low], faster than [High].
         *
         * Typically this implies a combination of bilinear interpolation and pyramidal parametric
         * prefiltering (mipmaps).
         */
        val Medium = FilterQuality(2)

        /**
         * Best possible quality filtering, albeit also the slowest. Typically this implies bicubic
         * interpolation or better.
         */
        val High = FilterQuality(3)
    }

    override fun toString() =
        when (this) {
            None -> "None"
            Low -> "Low"
            Medium -> "Medium"
            High -> "High"
            else -> "Unknown"
        }
}
